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US 5,293,707 AGranted
Efficient inflating device
OwnerHenry W. Shaefferinventor
Life of this patent
Estimating the term…
Abstract
A self-inflatable balloon and motor-driven turbine assembly has a communication discernible on a surface of the balloon and has a pneumatically sealed enclosure for the turbine. The sealed enclosure has an outlet port and which, together with the inlet port, are positioned in relation to the turbine to permit efficient flow of air or other gas into the balloon when it is desired to inflate the balloon. The outlet port or the inlet port, depending upon the embodiment, seals an enclosure when selectively operated to a closed position to prevent leaking of the gas from the inflated balloon.
Claims5
In combination:
- a) an inflatable balloon having an interior and an opening mouth;
- b) pump means having an inlet port and an outlet port, said outlet port being pneumatically connected to said opening mouth of said inflatable balloon, for pressurizing gas at said outlet port and in the interior of said balloon;
- c) switch means operably connected to said pump means for starting and stopping said pump means;
- and,
- d) door sealing means operably connected to said switch means for selectively preventing the passage of gas through said opening mouth when said switch means is operated for stopping said pump means, and for selectively sealing at least one of said inlet port and said outlet port.
2 more elements
Dependencies are inferred from the claim text.